Relaxation of electronic excitations in LiNbO₃ crystals

L. Grigorjeva Institute of Solid State Physics, University of Latvia, LV-1063, Riga, Latvia

V. Pankratov Institute of Solid State Physics, University of Latvia, LV-1063, Riga, Latvia

D. Millers Institute of Solid State Physics, University of Latvia, LV-1063, Riga, Latvia

G. Corradi Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O. Box 49, H-1525, Budapest, Hungary

K. Polgár Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O. Box 49, H-1525, Budapest, Hungary

Abstract

Transient absorption both in stoichiometric and Mg doped congruent LiNbO was observed after pulsed electron beam excitation. The luminescence spectra and decay kinetics in these materials show different excitonic relaxation possibilities. The dependence on sample stoichiometry is also discussed.

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Relaxation of electronic excitations in LiNbO₃ crystals

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Relaxation of electronic excitations in LiNbO₃ crystals